diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 825aeea..4ce8d45 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,10 +14,9 @@ jobs:
     strategy:
       matrix:
         node-version:
-          - 10
-          - 12
           - 14
           - 16
+          - 18
         os:
           - macos-latest
           - ubuntu-latest
diff --git a/formbody.js b/formbody.js
index e778516..a9ac701 100644
--- a/formbody.js
+++ b/formbody.js
@@ -27,6 +27,6 @@ function formBodyPlugin (fastify, options, next) {
 }
 
 module.exports = fp(formBodyPlugin, {
-  fastify: '^3.0.0',
-  name: 'fastify-formbody'
+  fastify: '^4.0.0',
+  name: '@fastify/formbody'
 })
diff --git a/package.json b/package.json
index ca29a8e..50d8064 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
   "devDependencies": {
     "@types/node": "^17.0.0",
     "codecov": "^3.7.2",
-    "fastify": "^3.3.0",
+    "fastify": "^4.0.0-rc.2",
     "pre-commit": "^1.2.2",
     "qs": "^6.5.1",
     "request": "^2.88.0",
diff --git a/test/integration.test.js b/test/integration.test.js
index 6dad4d6..0733f67 100644
--- a/test/integration.test.js
+++ b/test/integration.test.js
@@ -16,7 +16,7 @@ test('succes route succeeds', (t) => {
     res.send(Object.assign({}, req.body, { message: 'done' }))
   })
 
-  fastify.listen(0, (err) => {
+  fastify.listen({ port: 0 }, (err) => {
     if (err) tap.error(err)
     fastify.server.unref()
 
@@ -42,7 +42,7 @@ test('cannot exceed body limit', (t) => {
     res.send(Object.assign({}, req.body, { message: 'done' }))
   })
 
-  fastify.listen(0, (err) => {
+  fastify.listen({ port: 0 }, (err) => {
     if (err) tap.error(err)
     fastify.server.unref()
 
@@ -76,7 +76,7 @@ test('cannot exceed body limit when Content-Length is not available', (t) => {
     res.send(Object.assign({}, req.body, { message: 'done' }))
   })
 
-  fastify.listen(0, (err) => {
+  fastify.listen({ port: 0 }, (err) => {
     if (err) tap.error(err)
     fastify.server.unref()
 
@@ -112,7 +112,7 @@ test('cannot exceed body limit set on Fastify instance', (t) => {
     res.send(Object.assign({}, req.body, { message: 'done' }))
   })
 
-  fastify.listen(0, (err) => {
+  fastify.listen({ port: 0 }, (err) => {
     if (err) tap.error(err)
     fastify.server.unref()
 
@@ -139,7 +139,7 @@ test('plugin bodyLimit should overwrite Fastify instance bodyLimit', (t) => {
     res.send(Object.assign({}, req.body, { message: 'done' }))
   })
 
-  fastify.listen(0, (err) => {
+  fastify.listen({ port: 0 }, (err) => {
     if (err) tap.error(err)
     fastify.server.unref()
 
@@ -161,7 +161,7 @@ test('plugin should throw if opts.parser is not a function', (t) => {
   t.plan(2)
   const fastify = Fastify()
   fastify.register(plugin, { parser: 'invalid' })
-  fastify.listen(0, (err) => {
+  fastify.listen({ port: 0 }, (err) => {
     t.ok(err)
     t.match(err.message, /parser must be a function/)
     fastify.server.unref()
@@ -177,7 +177,7 @@ test('plugin should not parse nested objects by default', (t) => {
     res.send(Object.assign({}, req.body, { message: 'done' }))
   })
 
-  fastify.listen(0, (err) => {
+  fastify.listen({ port: 0 }, (err) => {
     if (err) tap.error(err)
     fastify.server.unref()
 
@@ -204,7 +204,7 @@ test('plugin should allow providing custom parser as option', (t) => {
     res.send(Object.assign({}, req.body, { message: 'done' }))
   })
 
-  fastify.listen(0, (err) => {
+  fastify.listen({ port: 0 }, (err) => {
     if (err) tap.error(err)
     fastify.server.unref()